ArticleMolecules (Basel, Switzerland)2024
Comparative Study of Potassium Ion-Selective Electrodes with Solid Contact: Impact of Intermediate Layer Material on Temperature Resistance.
Article in Molecules (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Study of potentiodynamic polymerization conditions of perinone polymer and their influence on sensor performance: new perspectives for solid-contact ion-selective electrodes.Mikrochimica acta · 2026Article
- Potentiometric Solid-Contact KMembranes · 2026Article
- Intermediate-Layer-Free Solid-Contact Ion-Selective Electrodes on Gold Microelectrode Arrays: A New Approach for Stable and Reproducible Potentials.Materials (Basel, Switzerland) · 2026Article
- 3D Printed Ion-Selective Electrodes Enriched with ZnO Nanoparticles for Potassium Detection.Sensors (Basel, Switzerland) · 2026Article
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4 authors.
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Abstract
This paper presents a comparative study on the temperature resistance of solid-contact ion-selective electrodes, depending on the type of solid-contact material. Five types of potassium electrodes, with a valinomycin-based model membrane, were developed using different types of mediation layers, namely a conductive polymer (poly(3-octylthiophene-2,5-diyl) and a perinone polymer), multi-walled carbon nanotubes, copper(II) oxide nanoparticles, and a nanocomposite consisting of multi-walled carbon nanotubes and copper(II) oxide. We examined how the measurement temperature (10 °C, 23 °C, and 36 °C) affects the sensitivity, measurement range, detection limit, selectivity, as well as the stability and reversibility of the electrode potential. Electrodes modified with a nanocomposite (GCE/NC/ISM) and a perinone polymer (GCE/PPer/ISM) showed the best resistance to temperature changes. An almost Nernst response and a stable measurement range and the lowest detection limit values for each temperature were obtained for them. The introduction of mediation layers significantly improved the stability and potential reversibility of all the modified electrodes relative to the unmodified electrode (GCE/ISM). Still, it was the GCE/PPer/ISM and GCE/NC/ISM that stood out from the others, with stability of 0.11 and 0.12 µV/s for 10 °C, 0.05 and 0.08 µV/s for 23 °C, and 0.06 and 0.09 µV/s for 36 °C, respectively.
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